1) Cold drawn seamless steel tubes/pipes
2) Certificate: ISO9001:2000
3) Spec.: DIN2391/C, EN10305-1, EN10305-4
4) Steel Gr.: St35, St37, ST37.4, St45, St52, St52-3, E235, E255, E355
5) O.D: 4mm-100mm
6) W.T: 0.5mm-10mm
7) Max length:12m
8) Package: bundled and wrapped in plastic or as per your requirement
9) Surface treatment: galvanized.
10)Application：used in hydraulic system, in the occasion where the requirement for antirust and anticorrosion of outer wall is relatively high